Home / 8,684.12-11,983.56-5,146.04

Finding the Fourth Proportional to 8,684.12, 11,983.56 and 5,146.04

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Solution

The fourth proportional to 8,684.12, 11,983.56 and 5,146.04 is: 7,101.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,684.12 : 11,983.56 = 5,146.04 : x
  2. Step 2: Convert to fraction form
    8,684.12/11,983.56 = 5,146.04/x
  3. Step 3: Cross multiply
    8,684.12x = 11,983.56 × 5,146.04
  4. Step 4: Simplify right side
    8,684.12x = 61,667,879.10
  5. Step 5: Solve for x
    x = 61,667,879.10/8,684.12
  6. Step 6: Final answer
    x = 7,101.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.